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US3161209A - Textile looms - Google Patents

Textile looms Download PDF

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Publication number
US3161209A
US3161209A US30476A US3047660A US3161209A US 3161209 A US3161209 A US 3161209A US 30476 A US30476 A US 30476A US 3047660 A US3047660 A US 3047660A US 3161209 A US3161209 A US 3161209A
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United States
Prior art keywords
air
weft thread
fabric
width
pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US30476A
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English (en)
Inventor
Scheffel Walter
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Individual
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Individual
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Publication of US3161209A publication Critical patent/US3161209A/en
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms

Definitions

  • Looms having a pneumatic picking system according to the present invention permit the production thereon of wide fabrics.
  • the present invention substantially reduces the risk of yarn breakage.
  • the performance of the loom is greatly improved.
  • firm selvages can be formed along the fabric edges.
  • FIGURE 1 is a schematic representation of pneumatic equipment in a loom having blow and suction pipes and also air admission elements;
  • FIGURE 2 is a side view of a device which permits insertion of picks into wide fabrics without the use of pilot p p
  • FIGURE 3 is one form of construction of air admission elements for use with the device illustrated in FIG. 2;
  • FIGURE 4 is an enlarged detail view of an air admission element according to FIG. 3;
  • FIGURE 5 is a schematic representation of a modified form of air admission element.
  • the pneumatic apparatus shown schematically in FIG- URE 1 comprises a blower 1, a blow pipe 29, a suction pipe 35% and a connecting pipe 4 extending from suction pipe 39 to the blower 1.
  • the weft thread S is supplied by the bobbin 9.
  • the blower 1 draws in the surrounding air in thedirection of arrow B and forces it into the blow pipe 29 in the direction of arrow A maintaining a continuous flow of air, its pressure being only slightly above the pressure of the atmosphere.
  • the weft thread to be fed into the machine runs through a yarn-measuring cone 8.
  • the thread S coming from a cone 9 runs through the yarn brake l4 and is presented at the cone 8 by a weft changer 16.
  • the cone i5 is proivded with an entraining 7 member 17 which picks up the weft thread which is presented by the device 16 causing the winding of the thread onto the cone 8.
  • the winding continues until the entraining member which is mounted tiltably at the cone 8, is tilted.
  • This tilting is effected by a control pulse generated once in the course of each revolution by a cam on the main drive shaft of the loom.
  • the dual level will cause the yarn brake 14 to open and the yarn brake 14 to close.
  • the weft thread S which runs also through theyarn brake 1 can nowbecause the yarn brake .14 is open-be carried by the air flow coming from the blower l to the blow pipe 29 and blown toward the shed.
  • the air issuing from the air admission elements 23 and 24 now impinges upon the thread, supports it, and
  • suction pipe 30 applies a suction effect to the weft thread S.
  • tubes 23 and 24 which serve as air admission means are secured to the sley 22. In their operative position the surfaces of the air admission elements 23 and 24 facing the interior of the shed 25 bear on the warp threads from both sides of the shed.
  • the tubes 23 and 24 may have the shape illustrated in FIG. 3. Facing the shed the pipes form nozzles which project saw-tooth fashion. From the faces of the teeth 26 and 27 the airadmitted through U and V issues in the direction of arrows P and P. In other words, the nozzles point in a direction for dis charge of the air from tubes 23 and 24 in the direction of the travelling weft thread S.
  • the nozzles are so contrived that the air issuing therefrom will flow in the longitudinal axis of the pick, as indicated by arrows C, D, E and F in FIG. 2. As illustrated more particularly in FIG. 4, the Warp threads K rest on the backs 28 of the teeth.
  • the blow and suction pipes may be stationary and located on each side of the warp shed as shown schematically in FIGURES 1 and 3.
  • FIG. 5 shows one of the air admission elements, of which a pair is always provided of a kind suitable for picking from both selvedges of the cloth.
  • the illustrated air admission element is likewise embodied in a tube marked 31.
  • the tube is again formed with saw-tooth nozzles. However, these are now arranged to point alternately to one edge of the cloth and the other. This is clearly shown in FIG. 5 where the saw-teeth from which the air issues to the left are marked 32, whereas the saw-teeth from which the air issues to the right are marked 33.
  • the nozzles are so contrived that the compressed air entering tube 31 from the right or from the left will always issue from the nozzles in the direction of air admission.
  • the nozzles and the admission pipes are of one-piece construction. In a practical embodiment of the invetnion this is by no means essential. Moreover, there is no necessity for the nozzles to be of saw-tooth pattern, provided they are appropriately contrived to discharge air into the shed towards the longitudinal axis of the weft thread trajectory in the direction of insertion of the pick whilst leaving the warp threads out side the flow pattern.
  • a pneumatic picking system comprising a blow pipe located adjacent the side of the warp, means for admitting aweft thread to said blow pipe, and
  • said air admission element extending across the Width of the fabric adjacent to the shedding point, and compressed air being supplied to said element
  • said air admission element being formed by an air pipe adjacent the shedding point extending outside of the warp threads and transversely thereto, the side of said air pipe facing the shed being constructed in a saw-tooth manner
  • said air pipe including a plurality of nozzles spaced across the width of the fabric and arranged in the faces of the respective teeth formed 7 on said air pipe, said nozzles being arranged to face in the direction of motion of said weft thread with the compressed air passing from said nozzles generating an air current in the direction of motion of the traversing weft thread to maintain the same in its predetermined trajectory across the width of the'fabric.
  • a loom according to claim l wherein said air admission pipes are movable relative to said warp, the position of said pipes being close to the warp thread during on thebacks of the teeth formed, on said airadmission of means for maintaining the weft thread in a predetermined trajectory along a considerable width of fabric comprising at least one air admissionelement extending across the Width of the fabric adjacent to the shedding point, and compressed'air being supplied to said element, said air admission element being formed by an air pipe extending outside of the warp threads and transverse- 1y thereto adjacent the shedding point, said air pipe including a plurality of nozzles spaced across the width of the fabric for directing air toward the trajectory of said traversing weft thread in the direction of travel of the weft thread to generate an air current in the direction of i the motion of the traversing weft thread to maintain the same in its predetermined trajectory across the width of thefabricr V 1 a 7.
  • v I r 8. A "loom having a pneumatic. picking system comprising a pair of pipes, [one offsaid pipes being located insertion of said weft thread so that the warp threads'rest v pipes whereby air can escape from said nozzles to gen- I erate said air current.
  • a loom according-to claim 1 wherein the faces of the teeth formed on said elementall face in the same direction.
  • a loom having a pneumatic picking system comprising a pair of pipes, one of said pipes being located on one side of the selvage of the fabric, the other of said pipes being located on the other side of said selvage, said pipes being adapted toselectively operate as a blow pipe for passinga weft thread through the shed from either side thereof along. a predetermined trajectory, means for admitting a weft thread to the blow pipe, means for supplying compressed air to the blow pipe whereby said weft thread is propelled through the shed, and means for maintaining the weft thread in its predetermined trajectory across.
  • said last-mentioned means including at least one pair of air admission eleformed byrair pipes extending outside of the shed and transversely over the warp,the side of said air pipes facing the shed being constructed ina saw-toothmanner, said air pipes each including a plurality of nozzles spaced across the width of the fabric andarranged in the face'siof;
  • each said pipe being adapted to selectively operate as a blow pipe for passing a weft thread through the shed from either side. thereof along a predetermined trajectory, means for admitting a weft thread to the blow pipe, means for supplying compressed air to the blow pipe whereby-said weft threadlis propelled through'the shed,
  • said last-mentioned meansincludingtwo pairs of air admission'elements extending across the width of the fabric adjacent to the shedding point, said pairs being arranged V respectively above and below the shed, each said air admission elements beingformed by an air pipe extending outside of the shed and transversely over the-warp, the
  • each said air pipe including a plurality of nozzles spaced across the width of, the fabric and arrangedin the faces of the teeth formedthereon, said nozzles in one of said airjpipes; of'each pair facing in the 1 opposite direction with respect to the'nozzles in the other ments extending across the width of the fabric adjacent i to the shedding point, said air admission elements being 1 to said blow pipe whereby said-weft threadis propelled f throughqthe' shed, ,the improvementg consisting essen ially ⁇ air pipe of, the respective pair, and compressed air being supplied to the one of said air pipes of each pair having nozzles, facing in the direction of motion ofsaid weft thread to generate an air current in the direction-of motion, of the traversingWeft-thread to maintain the same ingits 'predeterminedtrajectory across thefwidth of the.
  • V 9 In a loom'for producing woven fabrics ofla consider able width having a pneumatic picking system comprising a blow pipe located adjacent the side of the warp, means for admitting a weft thread to said blow pipe, and means for supplying. compressed air to said-blow pipe whereby saidweft'thread is propelled through the shed, the improvement consisting essentially of: means for maintaining the/weft thread in; a predetermined trajectory along a considerable width of fabric' comprising a pair of air ad- 'mission elements extending across the 'widthof the fabric adjacent.
  • each said air admission element being formed by an air pipe adjacentsthe a, shedding 'point extending outsidejof the v wangithreads and transyerselyfthereto, the side of said air pipefzicing the .being constructed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US30476A 1959-05-25 1960-05-20 Textile looms Expired - Lifetime US3161209A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DESC026103 1959-05-25
DESC027093 1959-12-05
DESCH27094A DE1170879B (de) 1959-05-25 1959-12-05 Luftzufuehrungsvorrichtung an Webmaschinen mit pneumatischer Schusseintragung
DESCH29953A DE1265674B (de) 1959-05-25 1961-07-07 Vorrichtung zum pneumatischen Eintragen der Schussfaeden an Webmaschinen mit Entnahme des Schussfadens von ortsfesten Spulen

Publications (1)

Publication Number Publication Date
US3161209A true US3161209A (en) 1964-12-15

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Family Applications (2)

Application Number Title Priority Date Filing Date
US30476A Expired - Lifetime US3161209A (en) 1959-05-25 1960-05-20 Textile looms
US207592A Expired - Lifetime US3181571A (en) 1959-05-25 1962-07-05 Pneumatic weft inserting means

Family Applications After (1)

Application Number Title Priority Date Filing Date
US207592A Expired - Lifetime US3181571A (en) 1959-05-25 1962-07-05 Pneumatic weft inserting means

Country Status (4)

Country Link
US (2) US3161209A (de)
CH (2) CH385761A (de)
DE (2) DE1170879B (de)
GB (3) GB954147A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3465791A (en) * 1966-07-22 1969-09-09 Strake Maschf Nv Apparatus for assisting the jet insertion of a weft thread into the shed of a loom
US3565122A (en) * 1968-04-10 1971-02-23 Vyzkummy A Vyvojovy Ustav Z Vs Comblike guide means for jet looms
US3707083A (en) * 1968-04-22 1972-12-26 Elitex Zavody Textilniho Apparatus for supplying weft threads to a warp knitting machine
US4031926A (en) * 1974-09-11 1977-06-28 Ruti Machinery Works Ltd. Loom with means for introducing the filling threads by means of a fluid
US4084623A (en) * 1976-06-17 1978-04-18 Nissan Motor Company, Limited Fluid jet loom with a yarn waste removing apparatus
US4290460A (en) * 1978-08-01 1981-09-22 Saurer-Diederichs Active auxiliary nozzle for a shuttle-less loom with pneumatic weft insertion

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1170879B (de) * 1959-05-25 1964-05-21 Walter Scheffel Luftzufuehrungsvorrichtung an Webmaschinen mit pneumatischer Schusseintragung
US3303857A (en) * 1963-08-09 1967-02-14 Scheffel Walter Loom with pneumatic picking means
NL6412785A (de) * 1964-11-03 1966-05-04
US3388722A (en) * 1965-03-11 1968-06-18 Sakamoto Toemon Shuttleless loom provided with weft thread storing means
USRE32916E (en) * 1969-10-22 1989-05-02 Method for transporting a weft thread through a weaving shed and a loom for performing said method
US3816029A (en) * 1972-10-03 1974-06-11 Duriron Co Pumping unit for constant pulseless flow
JPS5496168A (en) * 1978-01-06 1979-07-30 Nissan Motor Weft yarn introducing apparatus air jet type loom
US4212330A (en) * 1978-09-05 1980-07-15 Ruti-Te Strake B.V. Reed baulk unit
DE3428387A1 (de) * 1984-08-01 1986-02-13 Schlafhorst & Co W Verfahren und vorrichtung zum herstellen eines textilen flaechengebildes durch pneumatischen schusseintrag

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1096283A (en) * 1911-05-24 1914-05-12 John C Brooks Loom.
US1721940A (en) * 1928-06-28 1929-07-23 Lorraine Mfg Company Pneumatic weft-introducing mechanism for looms
US2637349A (en) * 1948-12-24 1953-05-05 George W Dunham Shuttleless loom which pneumatically projects weft thread
US2662556A (en) * 1949-04-02 1953-12-15 Ceskoslovenske Textilni Zd Y Device for weaving of fabrics
US2720223A (en) * 1953-10-01 1955-10-11 Mira Method and apparatus for periodically gaging equal lengths of thread and weaving with different colors or sorts of weft in shuttleless weaving looms
FR1191206A (fr) * 1957-02-08 1959-10-19 Strake Maschf Nv Métier à tisser
FR1196635A (fr) * 1958-05-09 1959-11-25 Dispositif de guidage du fil de trame dans les métiers à tisser et métiers pourvus dudit dispositif

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US985917A (en) * 1911-03-07 Luther C Mcneal Diaphragm-pump.
BE467199A (de) * 1945-08-11
BE494789A (de) * 1949-04-02 1900-01-01
AT202080B (de) * 1956-12-13 1959-02-10 Mira Zd Y Na Pletene A Stavkov Einrichtung zur Führung des Luftstromes durch das Fach bei Webstühlen mit pneumatischer Schußeintragung
NL235246A (de) * 1959-01-19
FR1261463A (fr) * 1959-05-25 1961-05-19 Métier à tisser à insertion pneumatique de la trame
DE1170879B (de) * 1959-05-25 1964-05-21 Walter Scheffel Luftzufuehrungsvorrichtung an Webmaschinen mit pneumatischer Schusseintragung

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1096283A (en) * 1911-05-24 1914-05-12 John C Brooks Loom.
US1721940A (en) * 1928-06-28 1929-07-23 Lorraine Mfg Company Pneumatic weft-introducing mechanism for looms
US2637349A (en) * 1948-12-24 1953-05-05 George W Dunham Shuttleless loom which pneumatically projects weft thread
US2662556A (en) * 1949-04-02 1953-12-15 Ceskoslovenske Textilni Zd Y Device for weaving of fabrics
US2720223A (en) * 1953-10-01 1955-10-11 Mira Method and apparatus for periodically gaging equal lengths of thread and weaving with different colors or sorts of weft in shuttleless weaving looms
FR1191206A (fr) * 1957-02-08 1959-10-19 Strake Maschf Nv Métier à tisser
GB862093A (en) * 1957-02-08 1961-03-01 Strake Maschf Nv Looms with stationary weft supply
FR1196635A (fr) * 1958-05-09 1959-11-25 Dispositif de guidage du fil de trame dans les métiers à tisser et métiers pourvus dudit dispositif
GB860970A (en) * 1958-05-09 1961-02-15 Svaty Vladimir A device for guiding the weft through the shed in shuttleless weaving looms

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3465791A (en) * 1966-07-22 1969-09-09 Strake Maschf Nv Apparatus for assisting the jet insertion of a weft thread into the shed of a loom
US3565122A (en) * 1968-04-10 1971-02-23 Vyzkummy A Vyvojovy Ustav Z Vs Comblike guide means for jet looms
US3707083A (en) * 1968-04-22 1972-12-26 Elitex Zavody Textilniho Apparatus for supplying weft threads to a warp knitting machine
US4031926A (en) * 1974-09-11 1977-06-28 Ruti Machinery Works Ltd. Loom with means for introducing the filling threads by means of a fluid
US4084623A (en) * 1976-06-17 1978-04-18 Nissan Motor Company, Limited Fluid jet loom with a yarn waste removing apparatus
US4290460A (en) * 1978-08-01 1981-09-22 Saurer-Diederichs Active auxiliary nozzle for a shuttle-less loom with pneumatic weft insertion

Also Published As

Publication number Publication date
GB1009898A (en) 1965-11-17
DE1170879B (de) 1964-05-21
CH385761A (de) 1964-12-15
US3181571A (en) 1965-05-04
GB954147A (en) 1964-04-02
GB942737A (en) 1963-11-27
DE1265674B (de) 1968-04-04
CH401854A (de) 1965-10-31

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